Well, I'd far rather meet the Christians that think they are saved by doing good works than the nasty, mean-spirited Christians that think they are saved by reciting 'magical' religious proclamations, and then continue to live like fascist pigs.
Also, who is and who isn't a Christian isn't really any of our business, is it? Our business is to embody the healing power of God's love, and forgiveness, and kindness, and generosity. So that others can experience it in their reality, through us, and understand it in their hearts and minds, and then hopefully choose to do likewise. Who does or doesn't is not up to us. And is not within our place or ability to judge.